Need .htaccess file to remove both "index.html" and ".html" from other pages

I need someone to make an .htaccess file that removes [login to view URL] and for other pages only removes ".html". Also it needs to be able to have both a trailing slash or no trailing slash (e.g. /folder1/page1 will work the same as /folder1/page1/). My directory hierarchy is like this: /.htaccess /[login to view URL] /folder1/[login to view URL] /folder1/[login to view URL] /folder1/[login to view URL] /folder2/[login to view URL] /folder2/[login to view URL] /folder2/[login to view URL] I want to access these pages like this: /[login to view URL] [login to view URL] or [login to view URL] /folder1/[login to view URL] [login to view URL] or [login to view URL] /folder1/[login to view URL] [login to view URL] or [login to view URL] /folder1/[login to view URL] [login to view URL] or [login to view URL] /folder2/[login to view URL] [login to view URL] or [login to view URL] /folder2/[login to view URL] [login to view URL] or [login to view URL] /folder2/[login to view URL] [login to view URL] or [login to view URL]